Abhishek Girish created DRILL-1836:
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Summary: Default length for Varchar in cast expressions should be
changed
Key: DRILL-1836
URL: https://issues.apache.org/jira/browse/DRILL-1836
Project: Apache Drill
Issue Type: Bug
Components: Execution - Data Types
Reporter: Abhishek Girish
Assignee: Aman Sinha
Current behavior:
Specify length:
> select cast(t1.colfam1.col1 as varchar(10)) from table1 t1;
+------------+
| EXPR$0 |
+------------+
| val1 |
| val21 |
| val26 |
+------------+
Default length for varchar in a cast expression:
> select cast(t1.colfam1.col1 as varchar) from table1 t1;
+------------+
| EXPR$0 |
+------------+
| v |
| v |
| v |
+------------+
When the length attribute is not specified with varchar, in a cast expression,
Drill treats the default length to be 1.
Postgres and SQL Server sets the default length to be 30 in such a scenario.
The behavior for Drill must be modified to something similar.
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